ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

Introduced: September 1968

Description

G03G encompasses technologies for creating images through electric or magnetic field-based processes, particularly electrophotography (xerography) and related charge-based imaging methods. This subclass covers photoconductive materials, toner compositions, image development systems, and transfer mechanisms used in copiers, printers, and facsimile machines. It also includes magnetographic processes that use magnetic particles to form images and electrographic techniques employing direct electric charge. Adjacent subclasses G03B (cinematography) and G03F (photomechanical production) address optical projection and photolithography respectively, distinguishing G03G's focus on charge-mediated rather than light-mediated image formation.

Of 14 combined children, 11 exist in both systems.

3 codes are CPC-only extensions.

Note: 3 CPC extensions are marked as secondary classification only.

4 shared codes have differing titles between IPC and CPC.

Child Classifications

Navigate with arrow keys, Enter to open

G03G 11/00 Selection of substances for use as fixing agents IPC+CPC Available in IPC and CPC
G03G 13/00 Electrographic processes using a charge pattern (G03G15/00, G03G16/00, G03G17/00 take precedence) IPC+CPC Available in IPC and CPC
G03G 15/00 Apparatus for electrographic processes using a charge pattern (G03G16/00, G03G17/00 take precedence) +7 CPC IPC+CPC Available in IPC and CPC
G03G 16/00 Electrographic processes using deformation of thermoplastic layers (layers for surface-deformation imaging G03G5/022); Apparatus therefor since 1974 IPC+CPC Available in IPC and CPC
G03G 17/00 Electrographic processes using patterns other than charge patterns, e.g. an electric conductivity pattern; Processes involving a migration, e.g. photoelectrophoresis, photoelectrosolography; Processes involving a selective transfer, e.g. electrophoto-adhesive processes; Apparatus essentially involving a single such process +1 CPC IPC+CPC Available in IPC and CPC
G03G 19/00 Processes using magnetic patterns; Apparatus therefor +1 CPC IPC+CPC Available in IPC and CPC
G03G 21/00 Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge since 1974 +3 CPC IPC+CPC Available in IPC and CPC
G03G 2215/00 Apparatus for electrophotographic processes 2nd only +16 CPC CPC only CPC only
G03G 2217/00 Details of electrographic processes using patterns other than charge patterns 2nd only +5 CPC CPC only CPC only
G03G 2221/00 Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination 2nd only +3 CPC CPC only CPC only
G03G 5/00 Recording-members for original recording by exposure, e.g. to light, to heat or to electrons; Manufacture thereof; Selection of materials therefor +1 CPC IPC+CPC Available in IPC and CPC
G03G 7/00 Selection of materials for use in image-receiving members, i.e. for reversal by physical contact; Manufacture thereof +5 CPC IPC+CPC Available in IPC and CPC
G03G 8/00 Layers covering the final reproduction, e.g. for protecting, for writing thereon since 1974 IPC+CPC Available in IPC and CPC
G03G 9/00 Developers IPC+CPC Available in IPC and CPC